Learn More
Thermo Scientific™ Brilliance™ E. coli/Coliform Selective Medium (Dehydrated)
Detect and enumerate Escherichia coli and other coliforms in food and water samples with this selective, chromogenic medium.
Brand: Thermo Scientific™ CM1046B
777.54 GBP valid until 2024-12-31
Use promo code "23894" to get your promotional price.
Description
Detect and enumerate Escherichia coli and other coliforms in food and water samples with selective, chromogenic Thermo Scientific™ Brilliance™ E. coli / Coliform Selective Agar. The agar base uses two chromogens to differentiate between Escherichia coli and other coliforms. This results in purple E. coli, as they are able to cleave both chromogens while other coliforms, giving pink colonies.
The recovery and enumeration of Escherichia coli and coliforms are important indicators of environmental and food hygiene. Use Brilliance E. coli / Coliform Selective Agar for detection and enumeration of Escherichia coli and other coliforms in food and water samples.
- Easy-to-read: purple E. coli colonies are easy to differentiate from pink colonies of other coliforms
- Selective: due to the presence of selective agent sodium lauryl sulphate the medium is selective against Gram-positive organisms.
Brilliance E. coli / Coliform Selective Agar contains two chromogenic agents:
Rose-Gal: detects ß-galactosidase activity
X-Glu: detects ß-glucuronidase activity
Detection of ß-glucuronidase activity is widely used to differentiate Escherichia coli, as this is present in E. coli but not in other members of the coliform group. As most coliforms are lactose-positive, ß-galactosidase activity, encoded by the lacZ gene, is then used to differentiate this group from other organisms able to grow on the selective medium. This results in purple E. coli, as they are able to cleave both chromogens with other coliforms, giving pink colonies, as they cleave only the galactoside chromogen.
The medium also contains sodium lauryl sulphate which acts as a selective agent, inhibiting the growth of Gram-positive organisms. Due to the addition of tryptophan, the rapid confirmation of E. coli by the formation of indole using a spot indole test is possible.
Not all products are available for sale in all territories. Please inquire.
Remel™ and Oxoid™ products are now part of the Thermo Scientific brand
Specifications
Brilliance E. coli/Coliform Selective Medium | |
Dehydrated Culture Media | |
For 17.8L medium |
Powder | |
500 g |
Your input is important to us. Please complete this form to provide feedback related to the content on this product.